Mopar Solid Lifter Set 273-360 383-440-426 H

The COMP CAMS Mopar Solid Lifter Set 273-360 383-440-426 H (Part #821-16) is a complete mechanical flat tappet lifter set engineered for small block and big block Mopar engines. This 16-piece set delivers the solid, direct valve actuation required for high-performance builds where hydraulic compliance would compromise cam timing precision and valve control at elevated RPM.

Mechanical flat tappet lifters eliminate the variable oil viscosity effects inherent in hydraulic lifters, providing consistent valve lash and more predictable engine response across temperature swings and load conditions. The 0.904-inch outside diameter is standard for Mopar applications and ensures direct compatibility with the factory lifter bores found in 273, 318, 340, and 360 small block engines, as well as the B-series (383, 400) and RB-series (440, 426 Hemi) big block platforms. COMP CAMS' solid lifter design is precision-manufactured to tight tolerances, supporting the aggressive cam profiles that street and strip builders rely on for maximum intake and exhaust valve timing control.

This lifter set is purpose-built for Mopar enthusiasts and engine builders transitioning from stock hydraulic actuation to performance solid lifter systems. Common applications include muscle car restorations, drag racing engines, and street performance builds where valve train responsiveness and durability at sustained high RPM justify the added setup complexity of solid lifters. The complete 16-piece configuration covers full valve train coverage for eight-cylinder engines.

Solid lifter systems require precise valve lash adjustment and ongoing maintenance—regular inspection and lash re-check intervals are part of ownership. Builders should pair this lifter set with a suitable Mopar solid-lifter cam profile and verify lifter bore condition before installation. COMP CAMS is recognized for manufacturing quality valve train components that support high-output engine builds across domestic platforms.